Tag dossier
Badge records tagged with GPIO, across Serbia, United States.
ESP32-WROOM-32 audio badge with Alexa experiment path
LayerOne 2018's electronic badge was an ESP32-WROOM-32-based audio and network badge documented by the official HHV archive, Hackaday's event report, the linked CharlieX ESP32_Alexa repository, and mmca's public hardware notes.
Badge Pirates ESP32-S2 home-automation badge
The CactusCon 11 badge was an ESP32-S2 WROOM electronic conference badge by Badge Pirates and the CactusCon team, built around the event's Nightmare House theme, IoT interaction, LEDs, buttons, optional OLED support, GPIO expansion, and USB serial access.
MC-0o00 CH32V003 mini cyberdeck badge
The BalCCon2k24 MC-0o00 badge scaled the cyberdeck idea down to a CH32V003 RISC-V board with LCD, six buttons, buzzer, GPIO/power interface, and the ability to connect to BCD-0o27.
Independent electronic badge and Pirate Flag SAO bundle with a scheduled DC33 BadgeLife drop
BigTaro's Tindie listing calls this the Submarine Badge & Pirate SAO and describes a $150 Defcon-pickup preorder. It frames the electronic artifact as an interactive underwater world with CTF package deliveries in DEF-SEA, pirate battles, underwater cults, Atlantis, hardware/software puzzles, and soldering challenges. The source says it has a super-bright round display, more than six buttons, one SAO port, exposed extra GPIO, a fully-programmable claim, an exclusive Pirate Flag SAO bundle, stickers, and an interaction with Gunslinger-B-Gone. BigTaro's own Submarine page supplies a live dashboard-like maker surface, and the DEF CON 33 Creator Events List independently schedules a Friday BadgeLife Community Table 1 drop naming Submarine alongside FrogStar and FightDystopia. These sources establish a real independent electronic-badge bundle and a scheduled 2025 event activity, not an official DEF CON credential, confirmed attendance or handout outcome, production count, electrical design, firmware source release, or reusable-image rights.
Pre-event 555-timer analog Simple Add-On for DEF CON 34
HogFillet's live Uberflux listing calls this the HackThePlanet SAO for DEF CON 34. Its August 4, 2026 marketplace snapshot lists $24 and a seller state of 19 sold from a listed total of 23. A public DEF CON 34 maker self-submission by FakeBobby / HogFillet calls the same linked product HTP Graffiti and gives the same $24 price; the catalogue treats that exact product-URL match as a source-backed alternate listing name, not a second board. The maker describes a 555 timer clocking a ten-bit ripple counter whose outputs drive eight LEDs through the board's graffiti art, with an onboard trimmer controlling the flash rate. It explicitly says the board has no firmware and no I2C handshake, and says a separate button can be connected to the odd or even GPIO line of the DEF CON badge's SAO header. The listing announces Friday and Saturday Badge Life Booth pickup slots, with mailing or refund offered if a stated drop is missed. This is source-backed evidence for a pre-event independent analog SAO, not proof of final delivery, exact components or circuit values, host behavior, electrical safety, optical safety, conference authorization, admission, or reusable-image rights.
Independent ATtiny1614 DEF CON 34 badge-challenge fuzzer SAO
NilbinSec's public DC34 Main Badge Fuzzer SAO repository documents a standalone SAO designed to exercise interfaces on the official DEF CON 34 Human badge using information published before the conference. Its README describes three initial modes: GPIO1/GPIO2 stimulation on the left SAO port, an open-drain CPU wake assertion on GPIO4 of the right port, and an I²C-address listening sweep. The repository provides a KiCad schematic, BOM CSV, PCB archive, C firmware, and compiled hex/ELF files. The README explicitly warns that Mode 1 may harm the main badge and says a convention reflash might follow. This is source-backed pre-event independent challenge hardware, not proof of a finished run, sale, giveaway, pickup, compatibility with a final main-badge revision, authorization to probe another badge, official DEF CON issuance or admission, a reusable-image grant, or an explicit software/hardware licence.
Pre-event ATtiny1616 cedar interactive Simple Add-On for DEF CON 34
MakeItHackin's live Uberflux listing describes Root Access as a home-milled Tennessee-cedar add-on built for the DEF CON 34 badge and says it also works with a standard six-pin SAO header. Its August 4, 2026 marketplace snapshot lists $50 and a seller state of 15 sold from a listed total of 100, with BSides Las Vegas and Linq Circle Bar drop labels. The maker's public RootAccess guide independently identifies an ATtiny1616, ten addressable RGB pixels, eleven discrete LEDs, fifty built-in animations, a physical button, I2C address 0x50, and non-volatile USERROW state. It documents standalone operation and host-controlled lighting over I2C, plus separate GPIO 1 and GPIO 2 circuits that can be used as LED outputs or button inputs. This is a source-backed pre-event independent SAO record, not proof of final manufacture, actual drop handoff, every listed compatibility claim, safe electrical integration, DEF CON organizer affiliation, conference admission, or reusable-image rights.